AM Broadcast RFI Kits

Aquarium AC Filter for Heater, Water/Oxygen Pump RFI

SKU AACF-1.4
$12.95
Bulk pricing available for quantities of 10 units or more
1
Buy more, save more
QuantityPrice per itemDiscount
10 items$10.0023% off
Save this product for later
Share this product with your friends
Aquarium AC Filter for Heater, Water/Oxygen Pump RFI
Product Details
MPN: AACF-1.4
Type: New
Country/Region of Manufacture: United States
RFI Range (MHz): 150 KHz to 10 MHz
ID-B (in/mm): 1.4/35.6
OD-A (in/mm): 2.4/61
Height-C (in/mm): 5/12.7
Weight (oz/gm): 106 grams
Initial permeability: 5000

Bothered by RFI/EMI from your aquarium pumps or heaters? If so use this filter on the AC power cord of each heater/pump to suppress the interference. Fits standard 120VAC AC plug

(2.4″ OD, 1.4″ ID hole), RFI Noise Suppression Range: 150 KHz-10 MHz, MIx 75

Excellent for standard 2 or 3 wire AC cables or multiple cables – use multiple cores in series for higher RFI suppression. Also useful when you need high turns count for high choking with large cable - works on all 120/240 and lower AC voltages.

Note: Wire shown for application purpose, NOT included with purchase.

If you want the AC chord with standardized AC plug, preassembled on the ferrite filter, see part# AC-CHOKE-6

When considering solutions for AM broadcast (550 Khz – 1.8 Mhz) you should consider Mix 77 ferrites available in a variety of shapes and sizes.  Choose a size to give the maximum number of turns of the affected wire or cable.

AM broadcast transmits on a low frequency with large antennas.  Consequently it takes a large antenna to receive the signals.  Typical “antennas” are AC house wiring, phone lines, long satellite or cable TV cables, DSL/CAT5 lines running between rooms, etc.  The device wires that connect to these  “antennas” need to be choked with as many turns through the ferrite as possible.  Some installation examples are shown below on this page.

For AC/ DC power cords and coax cables the F240-77 (2.4″ OD, 1.4″ ID) “Donut” toroid is the most popular.  Also available are smaller toroid donuts and Mix 77 beads. Shown below is a graph with 8, 10, and 12 turns through the toroid – obviously more turns has higher choking impedance.  Mix 77 toroid products are HERE and Mix 77 small beads (for small wires) are HERE

F240 77 Turns Comparison 1024x648 - AM Broadcast RFI Kits

F240-77 Turns Comparison from .1 – 8.1 Mhz

Shown below is a graph of frequency response verses choking magnitude for a F240-77 in the AM Broadcast band for a 12 turn coil around the toroid. (Same info as above but different frequency range).

AM Band Choking Graph F240 77 1024x648 - AM Broadcast RFI Kits

F240-77 Choking Impedance in AM Broadcast Band

 

 

Typical Installations for Donut/Ring Toroids

20131210 114716 150x150 - AM Broadcast RFI Kits

AC Cable on F-240 Toroid – 6 turns

20131210 115137 150x150 - AM Broadcast RFI Kits

Ethernet Cable on F-240 Toroid – 7 turns

20131222 125533 150x150 - AM Broadcast RFI Kits

Audio or Mic cable on F240- 12 turns

 

 Extra Mix 75 Snap On Beads  HERE – VERY effective for AM Broadcast RFI